I’ve got to use my gpz500s motor with 23tkm now my problem before 100km it started in the oil glass so a white shutter on the disc ausderm ogne at the filler nozzle with a bit of komdenzwasser!!! when I drive the long then eats away I drive but only short distance!!!! and I now have a problem from 1500 – 2000umdr one hears a quiet clacker but has full power and runs like ne one!!! the engine had got new oil and a filter before ca 500km it was 2 liters normal 15w40 and 1 liter partlyyntetisch!!! besides I made a new head seal on it but tightened everything with torque!!!!! someone knows advice or answer have fear that I could destroy the 350€ expensive motor!!!!